CN209371569U - Geothermal pump well and ground-source heat pump system - Google Patents
Geothermal pump well and ground-source heat pump system Download PDFInfo
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- CN209371569U CN209371569U CN201920089157.4U CN201920089157U CN209371569U CN 209371569 U CN209371569 U CN 209371569U CN 201920089157 U CN201920089157 U CN 201920089157U CN 209371569 U CN209371569 U CN 209371569U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 120
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 7
- 238000005057 refrigeration Methods 0.000 claims description 6
- 210000000476 body water Anatomy 0.000 claims description 2
- 230000009471 action Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model relates to a kind of geothermal pump well and ground-source heat pump system, geothermal pump well includes well and heat exchange pipeline；The depth of well is 600~4000m；Heat exchange pipeline includes water inlet line, water return pipeline, constant pressure water flooding device and well body；Well body is arranged in well；The first end of water inlet line, the first end of water return pipeline are connected with heat pump unit；The second end of water inlet line, the second end of water return pipeline all extend in well body；Filled media is additionally provided between well and well body；Constant pressure water flooding device is arranged between well and well body, fills the water between well and well body, improves the thermal coefficient of filled media.The geothermal pump well and ground-source heat pump system of this programme can exchange mid-deep strata geothermal energy for, and available heat reaches 150~200W/ meters, and heat utilization ratio is higher, and heat source is stablized, and thereby reduce well-digging quantity.
Description
Technical field
The utility model relates to mid-deep strata geothermal energy developments to utilize technical field, and in particular to a kind of geothermal pump well and ground
Source heat pump system.
Background technique
Earth source heat pump is one of the technology for the building energy conservation emission reduction that state key promotes and applies, and is a kind of using buried under ground
Heat exchange of heat pipe carries out the cold device exchanged of heat with the earth underground shallow layer geothermal energy resources, and winter can be used as the heat source of heat pump heating, summer
It can be used as the cold source of air-conditioning season.As China's winter haze is more serious, non-renewable resources are petered out, and a kind of section is sought
The energy that can be environmentally friendly is that China needs key problems-solving.China has vast territory, and geothermal energy resources are abundant, and Average geothermal gradient is about
3 DEG C/100 meters.I.e. in thermostat layer hereinafter, per increasing by 100 meters, about 3 DEG C of ground temperature increase downwards.
And wider shallow ground source heat pump well is applied at present, the depth of well is not high, so that available heat is only
50W/ meters, heat utilization ratio is lower, and the quantity that needs to dig a well is more, and it is relatively difficult to obtain stable heat source.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of geothermal pump well and ground-source heat pump system, to overcome
Shallow ground source heat pump well heat utilization ratio is lower at present, and the quantity that needs to dig a well is more, obtains that stable heat source is relatively difficult to ask
Topic.
In order to achieve the above object, the utility model adopts the following technical solution:
A kind of geothermal pump well, including well and heat exchange pipeline；
The depth of the well is 600~4000m；
The heat exchange pipeline includes water inlet line, water return pipeline, constant pressure water flooding device and well body；
The well body is arranged in the well；
The first end of the water inlet line, the first end of the water return pipeline are connected with heat pump unit；The water inlet pipe
The second end in road, the second end of the water return pipeline all extend in the well body；
Filled media is additionally provided between the well and the well body；
The constant pressure water flooding device is arranged between the well and the well body, between Xiang Suoshu well and the well body
Water filling, to improve the thermal coefficient of the filled media；
Circulatory mediator is entered in the well body by the water inlet line, by the water return pipeline after progress heat exchange
It enters in the heat pump unit, the heating or refrigeration to end-equipment is realized by the heat pump unit.
Further, geothermal pump well described above, the filled media are high osmosis sand.
Further, geothermal pump well described above, is additionally provided with through-hole；
The water inlet line, the water return pipeline are extended in the well body by the through-hole.
Further, geothermal pump well described above, the through-hole include first through hole and the second through-hole；
The well body includes well lid；
The first through hole is arranged on the well lid, and second through-hole is arranged on the borehole wall of the well body.
Further, geothermal pump well described above, the second end of the water inlet line extend to the well body inner wall
First position；
The second end of the water return pipeline extends to the second position of the well body inner wall；
The first position is located at the well body close to the side on ground；
The second position is located at the well body close to the side in the shaft bottom.
Further, geothermal pump well described above further includes ground source circulating pump；
The first end of the water return pipeline is connected by described ground source circulating pump with the heat pump unit.
Further, geothermal pump well described above, the part that the water return pipeline is arranged in outside the well body are provided with
Insulating layer.
Further, geothermal pump well described above is respectively arranged with temperature on the water inlet line, the water return pipeline
Detector.
Further, geothermal pump well described above further includes immersible pump；
The immersible pump is set to the second end of the water return pipeline, and the direction of the circulatory mediator to the ground is transported.
The utility model additionally provides a kind of ground-source heat pump system, including the heat pump unit, the end-equipment and with
The upper geothermal pump well；
The first end of the water inlet line, the first end of the water return pipeline are connected with the heat pump unit；
The heat pump unit is connected with the end-equipment.
The geothermal pump well and ground-source heat pump system of the utility model, geothermal pump well include well and heat exchange pipeline, ground
The depth of the well of source heat pump well is 600~4000m；Heat exchange pipeline include water inlet line, water return pipeline, constant pressure water flooding device and
Well body；Well body is arranged in well；The first end of water inlet line, the first end of water return pipeline are connected with heat pump unit；Water inlet
The second end of pipeline, the second end of water return pipeline all extend in well body；Filled media is additionally provided between well and well body；It is permanent
Pressure injection water installations are arranged between well and well body, fill the water between well and well body, improve the thermal coefficient of filled media；It follows
Ring medium is entered in well body by water inlet line, is entered in heat pump unit, is passed through by water return pipeline after carrying out heat exchange
Heat pump unit realizes the heating or refrigeration to end-equipment.During the geothermal pump well and ground-source heat pump system of this programme can exchange for
Deep geothermal heat energy, available heat reach 150~200W/ meters, and heat utilization ratio is higher, and heat source is stablized, the heat of single well
Utilization rate is improved, and thereby reduces well-digging quantity.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structure chart of the utility model geothermal pump well；
Fig. 2 is the structure chart of the utility model ground-source heat pump system.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
Fig. 1 is the structure chart of the utility model geothermal pump well.Referring to FIG. 1, the geothermal pump well of the present embodiment can be with
Including well 11 and heat exchange pipeline 12.The depth of well 11 is 600~4000m, and the geothermal pump well of the present embodiment belongs to middle depth
Layer geothermal pump well.In thermostat layer hereinafter, per increasing by 100 meters, about 3 DEG C of ground temperature increase downwards.11 depth of well of the present embodiment
Preferably 600m, available heat reach 150~200W/ meters, and heat utilization ratio is higher, and heat source is stablized.
Specifically, the heat exchange pipeline 12 of the present embodiment may include water inlet line 121, water return pipeline 122, constant pressure water flooding dress
Set 123 and well body 124；Well body 124 is arranged in well 11, and wherein the depth of well body 124 can be slightly less than well 11, well body
124 are placed in after well 11, can be with filling soil, fine sand or concrete etc. between 124 top of well body and ground.
Further, the first end of water inlet line 121, the first end of water return pipeline 122 are connected with heat pump unit, water inlet
The second end of pipeline 121, the second end of water return pipeline 122 can extend in well body 124.
Filled media 125 can be set between well 11 and well body 124, constant pressure water flooding device 123 also can be set in well
Between hole 11 and well body 124, and filled the water between well 11 and well body 124.The moisture percentage of filled media 125 improves, thermally conductive system
Number increases, and then improves the rate of heat exchange of circulatory mediator.
Circulatory mediator is entered in well body 124 by water inlet line 121, is carried out under the action of underground heat in well body 124
Heat exchange, temperature increase, and heat increases, and are entered in heat pump unit by water return pipeline 122 later, and heat pump unit utilizes circulation
The heat of medium realizes the heating or refrigeration to end-equipment.Specifically, the circulatory mediator of the present embodiment can be water, second two
Alcoholic solution or other substances.
The depth of the well 11 of the geothermal pump well of the present embodiment is 600~4000m；Heat exchange pipeline 12 includes water inlet line
121, water return pipeline 122, constant pressure water flooding device 123 and well body 124；Well body 124 is arranged in well 11；Water inlet line 121
First end, the first end of water return pipeline 122 are connected with heat pump unit；The second end of water inlet line 121, water return pipeline 122
Second end all extends in well body 124；Filled media 125 is additionally provided between well 11 and well body 124；Constant pressure water flooding device
123 are arranged between well 11 and well body 124, fill the water between well 11 and well body 124, improve the thermally conductive of filled media 125
Coefficient, specifically, the pressure of constant pressure water flooding device 123 is preferably 1.0MPa in the present embodiment；Circulatory mediator passes through water inlet line
121 enter in well body 124, enter in heat pump unit after carrying out heat exchange by water return pipeline 122, pass through heat pump unit reality
Now to the heating of end-equipment or refrigeration.The geothermal pump well of this programme can exchange mid-deep strata geothermal energy, available heat for
Reach 150~200W/ meters, heat utilization ratio is higher, and heat source is stablized, and the heat utilization ratio of single well is improved, and then reduces
Well-digging quantity.
The utility model additionally provides another embodiment, referring to Fig. 1, the filled media 125 of the present embodiment can be with
It is high osmosis sand, the present embodiment is preferably fine sand.Specifically, the water injection pipe of the constant pressure water flooding device 123 of the present embodiment can
To extend to the top of filled media 125, start to fill the water downwards at the top of filled media 125, the high seepage of water of high osmosis sand
Water can be made to permeate downwards rapidly, the filled media 125 between well 11 and well body 124 is enable all quickly to soak, filled
The moisture percentage of medium 125 improves, and thermal coefficient improves, and then improves the heat transfer rate of circulatory mediator.And it is flowed in circulatory mediator
Water energy reach the flowing of accelerating ground water, further improve heat exchange efficiency.
Specifically, the geothermal pump well of the present embodiment is additionally provided with through-hole 13, and water inlet line 121 and water return pipeline 122 are logical
Through-hole 13 is crossed to extend in well body 124.Specifically, the well body 124 of the present embodiment further includes well lid 1241.Through-hole 13 includes first
Preferably first through hole 131 is arranged on well lid 1241 for through-hole 131 and the second through-hole 132, the present embodiment, and the second through-hole 132 is set
It sets on 124 side wall of well body, water inlet line 121 can extend to well body 124 by first through hole 131, and water return pipeline 122 can be with
Well body 124 is extended to by the second through-hole 132.Specifically, the position of through-hole 13 can also be arranged at it according to the actual situation
His position, for example, first through hole 131 and the second through-hole 132 can be all disposed on well lid 1241, or by first through hole
131 and second through-hole 132 be all disposed on 124 side wall of well body.
Specifically, the geothermal pump well of the present embodiment, the second end of water inlet line 121 extend to the of 124 inner wall of well body
One position；The second end of water return pipeline 122 extends to the second position of 124 inner wall of well body；It is close that first position is located at well body 124
The side on ground；The second position is located at well body 124 close to the side in shaft bottom.In the present embodiment, the circulation in water inlet line 121 is situated between
Matter enters after the outflow of the second end of water inlet line 121 and carries out heat exchange in well body 124, and the diameter of well body 124 is greater than water inlet
Pipeline 121, the area contacted with the external world is big, and heat exchange is carried out in well body 124 can obtain higher heat exchange efficiency.Specifically
Ground, the second position extend to 124 bottom of well body, enter return pipe in the circulatory mediator that heat exchange is completed in 124 bottom of well body
Road 122 is entered in heat pump unit by water return pipeline 122.
Specifically, the geothermal pump well of the present embodiment further includes ground source circulating pump 14, and the first end of water return pipeline 122 is logical
It crosses ground source circulating pump 14 to be connected with heat pump unit, when ground source circulating pump 14 works, circulatory mediator can be transported to heat pump
In unit.
Specifically, insulating layer can be set in the part that the water return pipeline 122 of the present embodiment is arranged in outside well body 124, heat preservation
Layer thickness it is related with ambient temperature, under normal circumstances, insulating layer standard thickness be 6.5~8.5mm, strengthen be generally 6~
8mm, three layers are 8~9mm.
Specifically, the water inlet line 121 of the present embodiment, temperature detector can be respectively set on water return pipeline 122, wherein
The temperature detector of water inlet line 121 can be set at first through hole 131, enter well body 124 for detecting circulatory mediator, into
Temperature before row heat exchange；Water return pipeline 122 can be respectively set at 122 second end of water return pipeline, at the second through-hole 132
Temperature detector, the maximum temperature and circulatory mediator for detecting circulatory mediator leave temperature when well body 124, realize to earth source heat pump
The monitoring of well.
Specifically, immersible pump 15 can also be arranged in the geothermal pump well of the present embodiment, and immersible pump 15 can be set in return water
The second end of pipeline 122 relies solely on ground source circulating pump 14, it is difficult to be transported to circulatory mediator if well 11 is deeper
In heat pump unit, immersible pump 15 can transport the direction of circulatory mediator to the ground, improve the conevying efficiency of circulatory mediator.
The geothermal pump well of the present embodiment, on the basis of above embodiments, filled media 125 selects high osmosis sand
Soil, geothermal pump well are additionally provided with through-hole 13, water inlet line 121 and water return pipeline 122 and extend to well body 124 by through-hole 13
Interior, the second end of water inlet line 121 extends to the first position of 124 inner wall of well body；The second end of water return pipeline 122 extends to well
The second position of 124 inner wall of body；First position is located at well body 124 close to the side on ground；It is close that the second position is located at well body 124
The side in shaft bottom；Further include ground source circulating pump 14, when ground source circulating pump 14 works, circulatory mediator can be transported to heat pump
In unit；Insulating layer, water inlet line 121, water return pipeline 122 can be set in the part that water return pipeline 122 is arranged in outside well body 124
On temperature detector can be respectively set；Immersible pump 15 can also be arranged in geothermal pump well, improve the conevying efficiency of circulatory mediator.
The geothermal pump well of the present embodiment can exchange mid-deep strata geothermal energy for, and available heat reaches 150~200W/ meters, heat benefit
Higher with rate, heat source is stablized, and thereby reduces well-digging quantity.
Fig. 2 is the structure chart of the utility model ground-source heat pump system.The ground-source heat pump system of the present embodiment includes heat pump machine
Geothermal pump well 23 in group 21, end-equipment 22 and above embodiments.The first end of water inlet line 121, water return pipeline 122
First end is connected with heat pump unit 21；Heat pump unit 21 is connected with end-equipment 22.Circulatory mediator water inlet line 121, return
It is real under the action of heat pump unit 21 by heat pump unit 21 after completing heat exchange under the action of underground heat in waterpipe 122
End side circulating pump 24 now can be set in order to accelerate the circulation of end-equipment 22 to the heating and refrigeration of end-equipment 22.This
The ground-source heat pump system of embodiment can exchange mid-deep strata geothermal energy for, and available heat reaches 150~200W/ meters, heat benefit
Higher with rate, heat source is stablized, and the heat utilization ratio of single well is improved, and thereby reduces well-digging quantity.
It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments
Unspecified content may refer to the same or similar content in other embodiments.
It should be noted that term " first ", " second " etc. are used for description purposes only in the description of the present invention,
It is not understood to indicate or imply relative importance.In addition, in the description of the present invention, unless otherwise indicated, it is " more
It is a " meaning refer at least two.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (10)
1. a kind of geothermal pump well, which is characterized in that including well and heat exchange pipeline；
The depth of the well is 600~4000m；
The heat exchange pipeline includes water inlet line, water return pipeline, constant pressure water flooding device and well body；
The well body is arranged in the well；
The first end of the water inlet line, the first end of the water return pipeline are connected with heat pump unit；The water inlet line
Second end, the second end of the water return pipeline all extend in the well body；
Filled media is additionally provided between the well and the well body；
The constant pressure water flooding device is arranged between the well and the well body, infuses between Xiang Suoshu well and the well body
Water, to improve the thermal coefficient of the filled media；
Circulatory mediator is entered in the well body by the water inlet line, is entered after carrying out heat exchange by the water return pipeline
Into the heat pump unit, the heating or refrigeration to end-equipment are realized by the heat pump unit.
2. geothermal pump well according to claim 1, which is characterized in that the filled media is high osmosis sand.
3. geothermal pump well according to claim 1, which is characterized in that be additionally provided with through-hole；
The water inlet line, the water return pipeline are extended in the well body by the through-hole.
4. geothermal pump well according to claim 3, which is characterized in that the through-hole includes first through hole and the second through-hole；
The well body includes well lid；
The first through hole is arranged on the well lid, and second through-hole is arranged on the borehole wall of the well body.
5. geothermal pump well according to claim 1, which is characterized in that the second end of the water inlet line extends to the well
The first position of internal wall；
The second end of the water return pipeline extends to the second position of the well body inner wall；
The first position is located at the well body close to the side on ground；
The second position is located at the well body close to the side in the shaft bottom.
6. geothermal pump well according to claim 1, which is characterized in that further include ground source circulating pump；
The first end of the water return pipeline is connected by described ground source circulating pump with the heat pump unit.
7. geothermal pump well according to claim 1, which is characterized in that the portion outside the well body is arranged in the water return pipeline
Set up separately and is equipped with insulating layer.
8. geothermal pump well according to claim 1, which is characterized in that on the water inlet line, the water return pipeline respectively
It is provided with temperature detector.
9. geothermal pump well according to claim 1, which is characterized in that further include immersible pump；
The immersible pump is set to the second end of the water return pipeline, and the direction of the circulatory mediator to the ground is transported.
10. a kind of ground-source heat pump system, which is characterized in that including the heat pump unit, the end-equipment and such as right 1-9 institute
The geothermal pump well stated；
The first end of the water inlet line, the first end of the water return pipeline are connected with the heat pump unit；
The heat pump unit is connected with the end-equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920089157.4U CN209371569U (en) | 2019-01-18 | 2019-01-18 | Geothermal pump well and ground-source heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920089157.4U CN209371569U (en) | 2019-01-18 | 2019-01-18 | Geothermal pump well and ground-source heat pump system |
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| CN209371569U true CN209371569U (en) | 2019-09-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113091350A (en) * | 2021-04-12 | 2021-07-09 | 江苏梦溪智能环境科技有限公司 | Energy-saving ground source heat pump system for large industrial project |
| CN115875849A (en) * | 2022-11-29 | 2023-03-31 | 重庆交通大学 | Medium and high geothermal utilization system in alpine region |
-
2019
- 2019-01-18 CN CN201920089157.4U patent/CN209371569U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113091350A (en) * | 2021-04-12 | 2021-07-09 | 江苏梦溪智能环境科技有限公司 | Energy-saving ground source heat pump system for large industrial project |
| CN115875849A (en) * | 2022-11-29 | 2023-03-31 | 重庆交通大学 | Medium and high geothermal utilization system in alpine region |
| CN115875849B (en) * | 2022-11-29 | 2024-04-26 | 重庆交通大学 | Medium and high geothermal utilization system in high-cold areas |
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